removed unused nvctrl

src/cpu_gpu.h

@@ -15,7 +15,6 @@
 #include <regex>
 #include "nvidia_info.h"
 #include "memory.h"
-#include "nvctrl.h"
 
 using namespace std;
 

src/nvctrl.cpp

@@ -1,13 +0,0 @@
-#include "nvctrl.h"
-Display *display = XOpenDisplay(NULL);
-
-int nvidiaMemUsed(){
-		int ret;
-		XNVCTRLQueryTargetAttribute(display,
-					NV_CTRL_TARGET_TYPE_GPU,
-					0,
-					0,
-					NV_CTRL_USED_DEDICATED_GPU_MEMORY,
-					&ret);
-		return ret;
-}

src/nvctrl.h

@@ -1,5 +0,0 @@
-#include <X11/Xlib.h>
-#include "NVCtrl/NVCtrl.h"
-#include "NVCtrl/NVCtrlLib.h"
-
-int nvidiaMemUsed(void);